70 lines
2 KiB
C++
70 lines
2 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef ART_TARGET_ANDROID
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#include <android/log.h>
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#else
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#include <stdarg.h>
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#include <iostream>
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#endif
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#include "sigchain.h"
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#define ATTRIBUTE_UNUSED __attribute__((__unused__))
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// We cannot annotate the declarations, as they are not no-return in the non-dummy version.
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunknown-pragmas"
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#pragma GCC diagnostic ignored "-Wmissing-noreturn"
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static void log(const char* format, ...) {
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char buf[256];
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va_list ap;
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va_start(ap, format);
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vsnprintf(buf, sizeof(buf), format, ap);
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#ifdef ART_TARGET_ANDROID
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__android_log_write(ANDROID_LOG_ERROR, "libsigchain", buf);
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#else
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std::cout << buf << "\n";
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#endif
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va_end(ap);
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}
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namespace art {
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extern "C" void EnsureFrontOfChain(int signal ATTRIBUTE_UNUSED) {
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log("EnsureFrontOfChain is not exported by the main executable.");
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abort();
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}
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extern "C" void AddSpecialSignalHandlerFn(int signal ATTRIBUTE_UNUSED,
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SigchainAction* sa ATTRIBUTE_UNUSED) {
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log("SetSpecialSignalHandlerFn is not exported by the main executable.");
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abort();
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}
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extern "C" void RemoveSpecialSignalHandlerFn(int signal ATTRIBUTE_UNUSED,
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bool (*fn)(int, siginfo_t*, void*) ATTRIBUTE_UNUSED) {
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log("SetSpecialSignalHandlerFn is not exported by the main executable.");
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abort();
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}
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#pragma GCC diagnostic pop
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} // namespace art
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